how are we expected to climb when every game is like this

I'm winning mid, J4 dies at raptors level 5 and decides to AFK. Jax top doesn't understand the concept of wards so he's continuously feeding the enemy nasus and xin jg. Duo botlane feeds the enemy botlane and refuses to rotate or anything. I roam and try to help them all out, get a few shutdowns -- they continue to feed

And of course the enemy Xin thinks he's the shit for winning a 4v5 and spams "EZ" whilst flashing lvl 5 mastery. Maybe could've won that if the team would actually try and use whatever braincells they could muster to play smarter

Tell me how to climb when the majority of games are like this